1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
package weed_server
import (
"net"
"strings"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/topology"
"google.golang.org/grpc/peer"
)
func (ms *MasterServer) SendHeartbeat(stream master_pb.Seaweed_SendHeartbeatServer) error {
var dn *topology.DataNode
t := ms.Topo
defer func() {
if dn != nil {
glog.V(0).Infof("unregister disconnected volume server %s:%d", dn.Ip, dn.Port)
t.UnRegisterDataNode(dn)
}
}()
for {
heartbeat, err := stream.Recv()
if err == nil {
if dn == nil {
t.Sequence.SetMax(heartbeat.MaxFileKey)
if heartbeat.Ip == "" {
if pr, ok := peer.FromContext(stream.Context()); ok {
if pr.Addr != net.Addr(nil) {
heartbeat.Ip = pr.Addr.String()[0:strings.LastIndex(pr.Addr.String(), ":")]
glog.V(0).Infof("remote IP address is detected as %v", heartbeat.Ip)
}
}
}
dcName, rackName := t.Configuration.Locate(heartbeat.Ip, heartbeat.DataCenter, heartbeat.Rack)
dc := t.GetOrCreateDataCenter(dcName)
rack := dc.GetOrCreateRack(rackName)
dn = rack.GetOrCreateDataNode(heartbeat.Ip,
int(heartbeat.Port), heartbeat.PublicUrl,
int(heartbeat.MaxVolumeCount))
glog.V(0).Infof("added volume server %v:%d", heartbeat.GetIp(), heartbeat.GetPort())
if err := stream.Send(&master_pb.HeartbeatResponse{
VolumeSizeLimit: uint64(ms.volumeSizeLimitMB) * 1024 * 1024,
SecretKey: string(ms.guard.SecretKey),
}); err != nil {
return err
}
}
t.SyncDataNodeRegistration(heartbeat.Volumes, dn)
} else {
return err
}
// tell the volume servers about the leader
newLeader, err := t.Leader()
if err == nil {
if err := stream.Send(&master_pb.HeartbeatResponse{
Leader: newLeader,
}); err != nil {
return err
}
}
}
}
// KeepConnected keep a stream gRPC call to the master. Used by filer to know the master is up.
func (ms *MasterServer) KeepConnected(stream master_pb.Seaweed_KeepConnectedServer) error {
for {
_, err := stream.Recv()
if err != nil {
return err
}
if err := stream.Send(&master_pb.Empty{}); err != nil {
return err
}
}
}
|
